摘要
对于基底应力和扩大基础冲切应力的验算是钢筋混凝土扩大基础的设计的重要内容。文中提供了双向偏心受压情况下的基础受力理论计算方法和有限元计算方法,理论计算方法可以实现双向偏压基础最大基底应力的验算;有限元计算方法不仅可以计算出基底应力分布还可以验算扩大基础自身的弯、剪及冲切强度。此外,文中验算了四种不同类型的扩大基础的应力。结果表明,理论计算方法和有限元计算方法均能准确计算出基底应力分布;有限元方法还可以准确验算基础冲切强度。
The checking calculation of base stress and punching shear stress of expanded foundation is an important content in the design of reinforced concrete expanded foundation.The theoretical calculation method and finite element calculation method of foundation stress under biaxial eccentric compression are provided in this paper.The theoretical calculation method can check the maximum base stress of biaxial eccentric compression foundation;The finite element method can not only calculate the base stress distribution,but also check the bending,shear and punching strength of the expanded foundation itself.In addition,the stresses of four different types of expanded foundation are checked and calculated.The results show that the theoretical calculation method and finite element calculation method can accurately calculate the stress distribution of the base,and the finite element method can also accurately check the punching strength of the foundation.
作者
康文平
KANG Wenping(Transportation Bureau of Ximeng Va Nationality Autonomous County,Pu'er City,Pu'er,Yunnan,665700,China)
出处
《智能城市应用》
2022年第2期47-50,共4页
Smart City Application
关键词
桥下
扩大基础
受力分析
under the bridge
expand the foundation
force analysis
